<html>

<head>
<meta http-equiv="Content-Language" content="en-us">
<meta name="GENERATOR" content="Microsoft FrontPage 5.0">
<meta name="ProgId" content="FrontPage.Editor.Document">
<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
<title>Tracking Damaps</title>
</head>

<body>

<p align="center"><font size="6" color="#0000FF">Extracting a Matrix</font></p>

<p>Producing a matrix and tracking with it: nothing revolutionary here.</p>
<p align="left"><font color="#FF0000">matrix=TOTAL_DA_MAP</font><font color="#0000FF"><br>
&nbsp;</font></p>
<p>and the tracking is done in the usual fashion:</p>
<p align="left"><font color="#FF0000">&nbsp;ray=matrix*ray </font> </p>
<p align="left"><b>Ray must be an array of 6 real(dp) numbers. (dp=8)</b></p>
<p align="left">&nbsp;</p>
<p align="center">
<img border="0" src="matrix.jpg" width="454" height="450"></p>
<p align="left">The red circle is the matrix and the blue curve is the original 
nonlinear map.</p>
<p align="center"><font color="#0000FF" size="5"><b>
<a href="../simple_programs/z_damaps_tracking_matrix.f90">Program for this example</a></b></font></p>
<p align="left">&nbsp;</p>

</body>

</html>